1. Gifts-And Rules About Gifts;Bird;The Southern Purchasor,1987
2. How Ethical Are Industrial Buyers?;Browning;Industrial Marketing Management,1983
3. Are Purchasing Ethics Being Put to the Test?;Cummings;Chiltons Iron Age,1979
4. Business Ethics: Buyers and Sellers;Dubinsky;Journal of Purchasing and Materials Management,1981
5. Business Gift-Giving;Kiechel;Fortune,1985